Last updated: August 2026
GORTEF supplies PTFE sealing bands to fit the Doboy B-450, made to the dimensions you measure off your own machine. It is an aftermarket replacement rather than a genuine Syntegon Technology (formerly Bosch Packaging) part.
The B-450 is a continuous band sealer in the Doboy B series. Its sealing bands run as a matched pair, so they are changed together rather than one at a time.
Confirming the Exact Specification
Tell us what you are replacing and we will match it. Send the dimensions of the band you are removing, or a photo of it alongside its packaging, and we will confirm the construction before you order. Measure the old band laid out flat rather than on the machine, and check the width at the seam as well as along the run.
How to Order Bands for the Doboy B-450
Measure the band across its width and right around its length. PTFE sealing bands are made endless to the length you measure.
Band sealers run their bands in pairs, so tell us whether you want a single band or a full set for a changeover.
Check You Have the Right Machine
Model designations vary between regions and production years. To confirm the Doboy B-450 is the machine you are servicing, check the manufacturer's own listing:
Doboy B-450 on the manufacturer's siteDoboy and B-450 are trademarks or model designations of Syntegon Technology (formerly Bosch Packaging). GORTEF is not affiliated with, endorsed by or sponsored by Syntegon Technology (formerly Bosch Packaging). All names and part numbers are used for identification and cross-reference only, and every GORTEF product described here is an aftermarket replacement product rather than a genuine manufacturer part.
